qemu driver with KVM accelerator fails with "Could not access KVM kernel module: Permission denied"

[pka]

Job spec:

driver = "qemu"
config {
      artifact_source = "file:///tmp/debian8.img"
      accelerator = "kvm"
}

Job stderr:

Could not access KVM kernel module: Permission denied
failed to initialize KVM: Permission denied

Direct execution of same qemu-system-x86_64 command works.

[diptanu]

@pka What user is the Nomad client running as?

[pka]

Nomad client is running as root.

[dadgar]

Should be fixed by #656.

[vhosakot]

I was able to resolve the failed to initialize KVM: Permission denied error after doing the following:

rmmod kvm_intel
rmmod kvm
modprobe kvm
modprobe kvm_intel

The above commands reload the kvm_intel and kvm kernel modules.

[Zelda00]

to fix this issue you need to adduser to kvm to work fine ,give permission to solve it.

sudo adduser "youaccount" kvm

https://ccdtt.com/solved-could-not-access-kvm-kernel-module-permission-denied/

[github-actions]

I'm going to lock this issue because it has been closed for 120 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.